| #include <rfb/rfb.h> |
| |
| void rfbFillRect(rfbScreenInfoPtr s,int x1,int y1,int x2,int y2,rfbPixel col) |
| { |
| int rowstride = s->paddedWidthInBytes, bpp = s->bitsPerPixel>>3; |
| int i,j; |
| char* colour=(char*)&col; |
| |
| if(!rfbEndianTest) |
| colour += 4-bpp; |
| for(j=y1;j<y2;j++) |
| for(i=x1;i<x2;i++) |
| memcpy(s->frameBuffer+j*rowstride+i*bpp,colour,bpp); |
| rfbMarkRectAsModified(s,x1,y1,x2,y2); |
| } |
| |
| #define SETPIXEL(x,y) \ |
| memcpy(s->frameBuffer+(y)*rowstride+(x)*bpp,colour,bpp) |
| |
| void rfbDrawPixel(rfbScreenInfoPtr s,int x,int y,rfbPixel col) |
| { |
| int rowstride = s->paddedWidthInBytes, bpp = s->bitsPerPixel>>3; |
| char* colour=(char*)&col; |
| |
| if(!rfbEndianTest) |
| colour += 4-bpp; |
| SETPIXEL(x,y); |
| rfbMarkRectAsModified(s,x,y,x+1,y+1); |
| } |
| |
| void rfbDrawLine(rfbScreenInfoPtr s,int x1,int y1,int x2,int y2,rfbPixel col) |
| { |
| int rowstride = s->paddedWidthInBytes, bpp = s->bitsPerPixel>>3; |
| int i; |
| char* colour=(char*)&col; |
| |
| if(!rfbEndianTest) |
| colour += 4-bpp; |
| |
| #define SWAPPOINTS { i=x1; x1=x2; x2=i; i=y1; y1=y2; y2=i; } |
| if(abs(x1-x2)<abs(y1-y2)) { |
| if(y1>y2) |
| SWAPPOINTS |
| for(i=y1;i<=y2;i++) |
| SETPIXEL(x1+(i-y1)*(x2-x1)/(y2-y1),i); |
| /* TODO: Maybe make this more intelligently? */ |
| if(x2<x1) { i=x1; x1=x2; x2=i; } |
| rfbMarkRectAsModified(s,x1,y1,x2+1,y2+1); |
| } else { |
| if(x1>x2) |
| SWAPPOINTS |
| else if(x1==x2) { |
| rfbDrawPixel(s,x1,y1,col); |
| return; |
| } |
| for(i=x1;i<=x2;i++) |
| SETPIXEL(i,y1+(i-x1)*(y2-y1)/(x2-x1)); |
| if(y2<y1) { i=y1; y1=y2; y2=i; } |
| rfbMarkRectAsModified(s,x1,y1,x2+1,y2+1); |
| } |
| } |